Device for the washing and aftertreatment of threads wound on spools



July 9, 1935.; H. ELLING DEVICE FOR THE WASHING AND AFTERTREATMENT OFTHREADS WOUND'ON SPOOLS" Filed June 8, 1932 2 sheees-snee; 1

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DEVICE FOR THE WASHING AND AFTERTREATMENT OF THREADS WOUND ON SPOOLS 1Filed June 8, 1932 2 Sheets-Sheet 2 Patented July 9, 1935 PATENT OFFICEDEVICE FOR, THE WASHING AND AFTER- TREATIHENT OF THREADS WOUND N SPOOLSHiigo Elling, Wuppertal-Oberbarmen, Germany,

assignor to North American Rayon Corporation, New York, N. Y., acorporation of Delaware Application June 8, 1932, Serial No. 616,139

Germany June 8, 1931 6 Claims.

My present invention relates to a process for the washing andafter-treatment of threads wound on spools, in particular artificialsilk, and to a new type of gasket or fitting in the wet treatmentaccording to the pressure or suction process.

For the carrying out of the washing and other after-treatments ofartificial products spun and wound on perforated, cylindrical spools,which products are made of cellulose solutions or other solutionssuitable for spinning, the spools are stacked one on top of the other,or arranged next to each other and caulked as against one another withelastic rings. This process, however, cannot be carried out if it is amatter of spools, which permit of a decrease of the circumference afterthe spinning or after the washing. Spools of this kind have been oftensuggested. Thus spools have been furnished with movable parts, whichpossess a larger circumference during the spinnlng or winding than afterthe spinning or after the washing, or spools have been provided withslots, through which movable parts of the spool carrier penetrate to theoutside during the spinning. Moreover, spools have been suggested, whichhave been prepared out of yielding material, such as for example out offabric, paper, rubber or the like. Spools are also known which areslotted in longitudinal direction, so that the mantle parts can be movedagainst one another.

All these kinds of spools have also perforations on the surfaces notcovered with threads, so that the above described kind of caulking withelastic rings is not possible, as too much of the treatment liquid wouldflow unused through these perforations.

It is an object of my invention to achieve a simple and effectivecaulking of the spool stacks. or spool rows for the carrying out of thewet treatment, in that pliant, automatically closely 0 fitting, orelastic caulking members are laid round the ends of the spools, whichmembers lay themselves on to the lateral edges of the threads.Especially rubber, woven fabrics and paper not .allowing liquids to passthrough, and the like 5 have proved themselves to be the best materials.

Another object of my present invention is to provide a means wherebyfilaments wound on spools, which are arranged in stacks, can be caulkedas against one another.

A further object'of the present invention is to provide a means of thetype set forth, which is so constructed, that in the treatment ofthreads wound on spools by passing liquids through the body of thethreads or filaments by application of pressure or vacuum no liquid canflow through the parts not covered with the threads without being used.

Other objects of my invention will become apparent from a perusal of thefollowing specification and a study of the accompanying drawings, inwhich Fig. l discloses a cross sectional view of two spools with my newtype of gasket.

Fig. 2 is a detailed view in cross section of the gasket shown in Fig.1.

Fig. 3 is a sectional view of two spools and of a modified form of mygasket.

Fig. 4 shows the arrangement of Fig. 3 in operating position.

Figs. 5 and 6 show a gasket in the form of a tube in cross section andin top plan view.

Fig. 7 discloses this form of my gasket in operating position.

Figs. 8 and 9 are sectional views of two further modified forms of mynew caulking device.

Figs. 10 and 11 show two diiierent forms of thread-windings,

According to Fig. l the spools I, on which the threads 2 are situated,are provided with longitudinal slots, through which during the spinning,the parts of the spool-holder protrude towards the outside. Afterremoval from the spool .carriers the. spools are placed on a centeringring 3, which can consist of any desired material, for example hardrubber, and which carries as efiective caulking surfaces two parts 4which for instance are of soft rubber. If an under-pressure is producedin the interior of the column comprising spool and caulking disc, theparts 4 lay themselves on to the threads 2 laterally and thereby takethe form somewhat like that in Fig. 1. In Figs. 3 and 4 spools are shownhaving a longitudinal slot and the circumference of which can bedecreased by pressing one end under the other like a spiral. In thiscase the spools are positioned directly one above the other without acentering ring 3. The caulking member 4 has a somewhat different formfrom that in Figs. 1 and 2. By the production of an under-pressure inthe interior of the spool the V-shaped parts lay themselves on to theends of the layers of thread, so that they take the form correspondingto that in Fig. 4.

The caulking member can also take the form of a tube possessing a round,oval, fouror manysided cross section. Fig. 5 represents such a tube insectlon,-Fig. 6 in top plan view and Fig. 7 in the operating position.

For the caulking of the last spool or the last winding of a row or stackas against the end of the treatment device and as against the head pieceone pliant, automatically close fitting part t is often only necessary,which is preferably firmly connected with the end piece, for examplewith the bottom of the treatment device. If the flow of the liquid goesfrom the outside through the threads and the spool into the interior,then the forms of execution shown in the figures are of advantage. If,however, the direction of the flow is reversed, that is from theinterior of the spool to the outside, then the parts 4 are to be soshaped, that they point towards the spool. In this case the materialmust be selected somewhat thicker, in order that the caulking ring isnot pressed apart. Owing to the pressure exercised from the interior tothe outside the parts t are in this case also pressed against thethreads.

If the pliant, automatically closely fitting caulking members be alreadyon the spools in spinning, so that they represent removable discs, themember 4 is preferably provided with vertical surfaces at the plane ofcontact with the threads (of. Figs. 8 and 9).

For the carrying out of the process the form of the winding of thethread can be of any kind. Thus, for example, the forms of thread shownin Figs. 10 and 11 are suited for the application of the above describedcaulking member.

The form of the caulking member can vary. It is only important that itlays itself easily on to the edges of the thread-windings.

The caulking from thread to thread in the sense of the present processand with the aid of the novel, pliant automatically closely fittingmember is also of great importance for such spools or thread carriershaving no slots or apertures protruding beyond the spun surface butbeing covered with porous material. The new kind of caulking therebyprevents too great a loss of liquid, which could occur in the hithertousual washing in consequence of these porous materials allowing theliquid to penetrate. Furthermore the caulking members can also beadvantageously applied for the above described spools with change incircumference, even if the decrease in the circumference is only made inthe washing.

While I have illustrated what I believe to be pieces, that is forexample as against the bottom the preferred embodiment of my invention,it is obvious that various changes and alterations might be made in thegeneral form of the parts described without departing from my inventionand hence I do not limit myself to the precise details set forth butconsider myself at liberty to make such changes and alterations asfairly fall within the spirit and scope of the appended claims.

What I claim is:

l. A device for caulking adjacent edges of thread windings in the wettreatment comprising a ring-shaped tube of soft flexible materialadapted to conform to the shape of the surfaces contacted thereby uponthe application of a lowering in pressure within the thread windings.

2. A device for caulking adjacent edges of thread windings in the wettreatment comprising a ring-shaped tube having a four-sided crosssectionand of soft flexible material adapted to conform to the shape of thesurfaces contacted thereby upon the application of a lowering inpressure within the thread windings.

3. A device for caulking adjacent edges of thread windings in the wettreatment comprising a cylindrical portion provided with a fiat radialflange of soft flexible material at each end of said cylindricalportion, said flanges being.

adapted to conform to the. shape of the surfaces contacted thereby uponthe application of a lowering in pressure within the thread windings.

4. A device for caulking adjacent edges of thread windings in the wettreatment comprising a cylindrical portion provided with a flat radialflange of soft flexible material at each end of said cylindricalportion, said flanges being Joined in spaced relation at their outerperipheries, said flanges being adapted to conform to the shape of thesurfaces contacted thereby upon the application of a lowering inpressure within the thread windings.

5. A device according to claim 3 characterized by the fact that thecylindrical portion and the two flanges produce a U-shape incross-section.

6. A device according to claim 3 characterized by the fact that thecylindrical portion and the two flanges produce a V-shape incross-section. v

HUGO ELLING.

